Author

Hao Chen

2 papers indexed here

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Preprint Aug 2026

Do Robotic World Models Really Follow Actions? Diagnosing and Aligning Action-Conditioned Generation for Policy Learning

WorldEcho is introduced, which probes action following over a broader action distribution using visual integrity and SE(3) trajectory alignment, and WorldSync is proposed, which strengthens action following along three complementary axes: distributional coverage, representational grounding, and intervention-effect alig...

Si-Xiang Chen, Jia-Ming Liu, Ji-Xin Wu et al. · 2 citations · ⚡1

#artificial intelligence Preprint Sep 2026

Beyond Generation and Accuracy: Diagnosing and Enhancing Visual Chain-of-Thought for Geometry Problem Solving

GeoVAD-Bench is introduced, a diagnostic benchmark that pairs a fine-grained five-dimensional trajectory diagnosis covering perception, auxiliary quality, utilization, deductive reasoning, and final correctness with controlled No-Aux, Auto-Aux, and GT-Aux intervention settings to systematically isolate intermediate err...

Zhi-Tong Dong, Ji-Cai Pan, Ying-Guo Gao et al. · 0 citations